Trolley-pole.



0w 0 W 0 3 n a I. d 6 t n e t a P N A R U M L T N E F P In 3 6 2 4 6 0 N TROLLEY POLE.

(Application filed. May 1, 1899.)

(No Model.)

WITNESSES.

IN V'EJVTORS,

fiwl dttorney v UNITED STATES PATENT OFFICE.

FRANK PFENT, OF GREINER, AND LOUIS A. MORAN, OF GROSSE POINT, MICHIGAN.

T ROLLEY-POLE.

SPECIFICATION forming part of Letters Patent No. 642,363, dated January 30, 1900. Application filed May 1, 1899- Eierial No. 715,100. (No model.)

States, have invented a certain new and useful Improvement in Trolley Mechanism forElectric Railways; and we declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

Our invention has for its object certain new and useful improvements in a trolley mechanism for electric railways and devices to actuate the trolley-pole; and it consists of the construction, combination, and arrangement of devices hereinafter specified and claimed, and illustrated in the accompanying drawings, in which- I Figure 1 is a view in side elevation. Fig. 2 is a view in end elevation. view. Fig. 4 is a view in section on the line 4. 4, Fig. 2. Fig. 5 shows a modification of devices for locking the reversing mechanism. Fig. 6 is a detail View of one of'the dogs con-' nected with'the reversing mechanism. Fig. 7 is a view in section, showing details of the construction of the shafts H 11.

Our invention is more particularly designed to provide a trolley-pole and supporting mechanism therefor, by means of which the pole may be thrown over from either end of the car to engage its trolley-wheel with the overhead wire for propelling the car in either direction; also, to provide mechanism whereby the pole may yield laterally, as well as longitudinally, of the car.

Our invention is also designed to provide means for automatically holding the trolley down away from the wire should the trolley- Wheel fly off from the wire, so that the-trolleywheel will not strike any cross-arms, but will be held entirely out of the way of any obstruction.

Our invention is also designed to provide means whereby the pole may readily be restored to normal position and the holding- Fig. 3 is a plan.

away mechanism be locked out of action until the trolley-wheel might again fly off the wire.

Our invention also comprises the general construction and arrangement of devices hereinafter shown and described, for the purposes specified.

We carry out our inventionas follows:

A represents any suitable base, the same being designed to be secured to the roof of a car-body in any suitable manner. Upon this base is mounted a supporting-framework A. A supporting plate or spider is indicated at a, the same being provided with journals 2 2, having their hearings in the supportingframework A. The plate a, with its journals, extendstransversely of the car, and the journals are arranged to rock in their bearings longitudinally of the car.

Upon the plate or spider a rests a spring a, surmounted by a top plate A ,"formed with a socket 1 to receive and support a trolley pole or standard B. The trolley-pole may be of any desired construction and may be provided with any suitable trolley-wheel (not shown) to engage the overhead wire. The plates at and A are connected by rods 3 3, said rods having a jointed engagement at their extremities with the corresponding plates, the construction being such that the upper plate A with the pole carried thereupon, may be tilted or may sway laterally or transversely of the car, the coiled spring a permitting the trolley-pole to yield laterally in either direction. Upon the journals 2 2 of the plate or spider a are mounted segments 0 O.

Toward each of the ends of the base A are mounted transverse bars D D and D D, the outer extremities of said bars being journaled in bearings at 4. and 5 5. The inner ends of the bars D D are journaled in an intermediate bearing 6, and the adjacent ends of the E, and E E are preferably grooved on their peripheries to receive and guide the corresponding chains.

Upon the bars D D is engaged a spring G,-

and upon the bars D D is mounted a spring G. Each of said springs is preferablycoiled from the center outward, forming two portions engaging the corresponding bars D D and D D, the two portions of each spring exerting their tension in the same direction upon the corresponding bars. It will be perceived, as above stated, that the journals 2 2 are arranged to rock longitudinallyof the car; This may be accomplished by means of customary cords or ropes (not shown) engaged with the trolleypole, a rope preferably extended to each end of the car. By grasping the rope the pole may readilybe pulled down toward either end of the car, as may be required, the rods D D and D D, with their spring tension, being arranged to rock in a direction corresponding to the movement of the trolley-pole. Thus from Fig. 1, for example, it will be seen that should the pole B be turned to the right the segmentsEE would be turned in a direction toward the segment C, and vice versa, the corresponding springs exerting their tension upon the corresponding bars, whereby when force is relieved from either of the ropes the trolleypole will assume its normal position to bring the trolley into contact with the wire. In this manner the pole may be drawn down from either end of a car and restored to contact with the wire, the mechanism at the end of the base A opposite the direction in which the pole is pulled over actuating to hold the trolley to the work in whichever direction the car may be running. By employing twobars D D and D D we are not only enabled to get the device into place more conveniently, but we are thereby also enabled to separately adjust the tension of each portion of the corresponding spring as may be desired. The bars D D and D D are in the nature of rock-shafts, the springs tending to restore said shafts into normal position.

To automatically throw and hold the trol- Icy-pole out of the way of any cross-arms or other obstructions should the trolley-wheel fly off the wire, we provide intermediate the ends of the base shafts H H, which may be journaled in the sides of the base A, upon which shafts is mounted a spring J, exerting its tension upon said sl1afts. Upon said shafts H H and toward the extremities thereof are mounted segmental gears K, meshing with segmental gears L upon the journals 2 2.

Upon the segments L L are engaged springpawls M, one being shown in Fig. 4, the other segment L being similarly provided with a corresponding spring-pawl. The segments K each carry a reciprocatory springactuated rod N, like that shown, for example, in Fig. 4;, the outer end of the spring-actuated rods N engaging against corresponding spring-actuated dogs P, journaled, as atQ, upon corresponding brackets Q upon the frame. Springs q tend to restore said dogs into normal position. The dogs P are arranged to lock the corresponding segments K, and to this end may be constructed to abut against a shoulder of the corresponding segment, as indicated at 8. The shafts 1-1 H may rock the one upon the other intermediate their ends, as indicated more particularly in Fig. 7 at 9. The dogs P P are arranged on opposite sides of the shafts II Hon the two sides of the base A.

It is evident that if the trolley should fly off from the wire a tension would be exerted upon the pole to straighten it up into a vertical position. Amovementinthisdirection,however, would cause the correspon ding spring-pawl M to exertapressure upon the correponding rod N to trip the corresponding dog P and throw it out of locked en gageinentwith the correspond: ingsegment K. It will be evident that when the dogP is thrown out from locked position relative to the segment K the spring J, exerting its tension upon the corresponding portion of the shaft II, will rock the corresponding segment meshing with the adjacent segment L and through the journals 2 2 with the pole supported upon the platea, bringing it down in such a position as to be out of cont-act wit-h any possible obstruction.

It will be understood that both the dogs P are in locked position relative to the corresponding segments K when the pole is in operative position; but should the trolley fly oil .the wire one of the pawls M, corresponding tp the direction in which the pole was flexed,

would trip the corresponding dog and throw the pole down out of the way, one of the pawls M, with its related parts, operating to throw the dog thus whether the pole be flexed toward one end of the car or the other.

The locking mechanism may be restored to normal position in any suitable manner-as, forexample, by means of a lever-wrench upon the corresponding end of the shafts II, or one of the journals 2 maybe provided with a segment R and one of the shafts H with a segment R, the segments R R being connected by a chain R The segmentsR R, with the connecting-chains, are duplicated on opposite sides of the base A. By means of this mechanism a pull exerted upon the pole B from either end of the car would restore the corresponding segments K and dogs P into locking position. We do not limit ourselves, however, to the use of the segments R R thus connected with which to restore the segments K to locked position. A modification is shown in Fig. 5 of mechanism to accomplish the same purpose, consisting,essentially, of a jointed lever S, secured at one end upon the adjacentjournal 2,the shafts H being provided with locking-arms T, engaged with the opposite ends of the jointed lever S. It will be obvious that force supplied to the pole B to rock the journals 2 would cause the jointed IIO lever S to assume a straightened position,

forcing down the corresponding arm T, rocking corresponding portions of the shafts H, and bringing its segment K into locked position with the dog P.

What we claim as our invention is 1. In a trolley mechanism, the combination of a supporting-frame, a rocking .base jour- .naled in the sides of said frame provided with segments at its extremities, rock-shafts toward opposite ends thereof provided with segments toward the extremities thereof, a spring carried by said base to flex in a direction transverse to the rocking of the base, a standard carried by said spring, and flexible connections to connect the segments of the rock-shafts with the segments of the rocking base, substantially as set forth.

2. In a trolley mechanism, the combination of a supporting-frame, rock-shafts, means to retract the rock-shafts, a rocking base upon said frame, a spring upon said base to flex in a direction transverse to the rocking of the base, a cap upon said spring, flexible connections uniting said rock-shafts with the base, means-to connect said base with said cap, and a standard carried by said cap, substantially as set forth.

3. In a trolley mechanism, the combination of a rocking base, twosets of rock-shafts on each side of said base connected therewith, a single spring to retract the rock-shafts of each set, a spring carried by said base to flex in a direction opposite the rocking of the base, and a standard supported upon said spring, substantially as described.

4. In a trolley mechanism, the combination of a rocking base, two sets of rock-shafts on each side of said base connected therewith, a single spring engaged with each set of rockshafts to retract said shafts, and a standard supported upon said base, the rock-shafts of each of said sets having an independent rocking movement, substantially as set forth.

5. In a trolley mechanism, the combination of a rocking base, two sets of rock-shafts on each side of said base connected therewith, springs to retract said rock-shafts, and a standard supported upon said base, the rockshafts of each of said sets having an independent rocking movement, substantially as set forth.

6. In a trolley mechanism, the combination of a rocking base, a rock-shaft on each side of the base each made in two portions, a single spring upon both portions of the rockshafts exerting its tension thereupon, a spring carried by said base to flex in a direction transverse to the rocking of the base, a standard carried by said spring, and means to connect the rock-shafts with the rocking base, substantially as set forth.

7. The combination of a rocking base, rockshafts connected therewith, means to retract the rock-shafts, a trolley-standard supported upon said base, and mechanism actuated by the rocking base to automatically throw and hold the standard down when the trolleywheel is oif the'wire,substantially as set forth.

8. In a trolley mechanism, the combination of an oscillatory trolley-standard, a shaft, a gear carried by the shaft,alocking-g'ear meshing with the first-named gear, a device to lock the locking-gear, and means to release said device from the locking-gear, substantially as set forth.

9. In a trolley mechanism, the combination of an oscillatory trolley-standard, a springactuated shaft, a gear carried by said shaft, a locking-gear meshing with the first-named gear, a device to lock the locking-gear, and means carried by said gears to release said device from the locking-gear, substantially as described.

10. In a trolley mechanism,the combination of an oscillatory trolley-standard, a springactuated shaft, a gear carried by said shaft, a locking-gear meshing with the first-named gear,a device to lock the locking-gear, a movable rod carried by the locking-gear, and a pawl carried by the first-named gear to actu-' locking-gears meshing with the 'correspond- Q ing first-named gears, devices to lock the locking-gears, and means to release said device from the locking-gears, whereby, should the Witnesses:

N. S. WRIGHT, M HIoKEY. 

